The static declaration of the event as an HtmlStreamProvider which provides a Stream for a DOM event on a specific target. This is only really used for bubbling DOM events.

A Stream<> getter on the object instance to allow easy access to the event stream.

NOTE: we will not remove the old APIs until the new APIs have been in & baked for a while.

Examples of old vs new syntax:

Listening to an event

Old:

element.on.click.add((e) {

});

New:

element.onClick.listen((e) {

});

Capturing an event

Old:

element.on.click.add((e) {

}, true);

New:

Element.clickEvent.forTarget(element, useCapture:true).listen((e) {

});

Listening to a bubbled event

Old (not really supported):

document.body.$dom_addEventListener('canPlay', (e) {}, false);

New:

MediaElement.canPlayEvent.forTarget(document.body).listen((e) {

});

QUESTIONS:

Are you planning on exposing all model events as Streams? By this I mean something like backbone.js-style events. Our goal for DOM events is to be consistent with the dominant data event model.

Any opinions on naming? Currently the events are exposed as onEventName, but it's often common to use this naming style for virtual methods. Using just eventName has a number of conflicts with members. We aren't entirely thrilled with onEventName.

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